Billionaire Stanley Druckenmiller Piled Into Alphabet and Amazon for a 2nd Consecutive Quarter and Dumped His Stake in Another "Magnificent Seven" Stock

By Sean Williams – Feb 27, 2026 at 4:06AM ESTKey PointsForm 13Fs provide a way for investors to track which stocks Wall Street's savviest fund managers bought and sold in the latest quarter.

Billionaire Stanley Druckenmiller meaningfully increased his fund's stakes in Alphabet and Amazon during the fourth quarter -- and AI is probably a big reason behind these moves.Meanwhile, another big-spending trillion-dollar AI stock was given the heave-ho by Duquesne's billionaire investor.NASDAQ: METAMeta PlatformsMarket Cap$1.7TToday's Changeangle-down(0.47%) $3.09Current Price$656.78Price as of February 26, 2026 at 3:58 PM ETDuquesne Family Office's billionaire boss made sizable moves in three of Wall Street's most influential artificial intelligence (AI) stocks during the fourth quarter.Last week marked what was arguably the most important data release of the entire first quarter. Feb. 17 was the deadline for institutional investors with at least $100 million in assets under management to file Form 13F with the Securities and Exchange Commission. A 13F details which stocks Wall Street's smartest money managers bought and sold in the latest quarter.

With Warren Buffett retiring, an argument can be made that billionaire Stanley Druckenmiller is now Wall Street's most-followed money manager. Druckenmiller is an active investor who loves growth stocks, as evidenced by sizable purchases of Alphabet (GOOGL 1.84%)(GOOG 1.88%) and Amazon (AMZN 1.31%) shares for a second consecutive quarter. But not all members of the "Magnificent Seven" are in Druckenmiller's good graces. Image source: Getty Images.

Duquesne Family Office's billionaire boss loves inexpensive artificial intelligence stocks According to Duquesne's 13F detailing fourth-quarter trading activity, Druckenmiller bought 282,800 shares of Alphabet (Class A shares, GOOGL) and 300,870 shares of Amazon. This increased Duquesne's stake in both companies by 277% and 69%, respectively. Both are industry leaders in their respective categories. Alphabet's Google holds a virtual monopoly in internet search traffic, with GlobalStats data showing it accounts for a 90% share of the global market. Meanwhile, Amazon has the most dominant online marketplace, as well as the No. 1 cloud infrastructure service platform, Amazon Web Services (AWS). These foundational segments are cash cows for Alphabet and Amazon. ExpandNASDAQ: GOOGLAlphabetToday's Change(-1.84%) $-5.75Current Price$307.15Key Data PointsMarket Cap$3.7TDay's Range$302.35 - $313.0352wk Range$140.53 - $349.00Volume1.7MAvg Vol34MGross Margin59.68%Dividend Yield0.27% But what likely attracts Duquesne's billionaire investor to both companies is their ties to artificial intelligence (AI). Alphabet and Amazon are incorporating generative AI and large language model capabilities into their respective cloud infrastructure service platforms (Google Cloud and AWS). Growth rates for both segments are reaccelerating, thanks to AI, with year-over-year sales increases of 48% for Google Cloud and 24% for AWS in the fourth quarter. Their relatively inexpensive valuations may have also enticed Stanley Druckenmiller. Amazon is historically cheap, relative to its future cash flow, while Alphabet's forward price-to-earnings ratio of 24 isn't egregious considering its outsize growth from Google Cloud. Image source: Getty Images.

Billionaire Stanley Druckenmiller gives Meta Platforms the heave-ho However, another member of the Magnificent Seven found itself on the chopping block. Among the 31 stocks Druckenmiller's fund sold out of in the fourth quarter, none is more prominent than social media goliath Meta Platforms (META +0.47%). Druckenmiller dumped all 76,100 shares that were previously held. One possible reason for this selling is simple profit-taking. The average security in Duquesne's portfolio has only been held for 7.5 months, indicating that Druckenmiller isn't shy about cashing in his chips. But there may be more to this selling than just a desire to ring the register. ExpandNASDAQ: METAMeta PlatformsToday's Change(0.47%) $3.09Current Price$656.78Key Data PointsMarket Cap$1.7TDay's Range$647.55 - $660.9352wk Range$479.80 - $796.25Volume754KAvg Vol16MGross Margin82.00%Dividend Yield0.32% For instance, Meta's third-quarter operating results pointed to higher-than-expected spending on AI infrastructure. While AI has been a source of rapid sales growth (see Alphabet and Amazon), many of Meta's major investments will take years to play out. Some investors, including Duquesne's chief, may have viewed this higher spending forecast as a future drag on earnings. Meta Platforms also generates nearly 98% of its sales from advertising, making it a highly cyclical company. Possible concerns about economic weakness may have prompted Druckenmiller to dump his fund's stake in Meta.Read NextFeb 26, 2026 •By Keithen DruryBillionaire Bill Ackman Just Loaded Up on This Cheap "Magnificent Seven" StockFeb 24, 2026 •By Dave KovaleskiStock-Split Watch: Is Meta Platforms Next?Feb 24, 2026 •By Sean WilliamsBooking Holdings Is the First Blockbuster Stock Split of 2026 -- and the Table Is Set for This Company (Up 1,620% Since Its IPO) to Follow in Its FootstepsFeb 23, 2026 •By Justin Pope2 Unstoppable Growth Stocks to Buy Right Now for $1,000Feb 22, 2026 •By Geoffrey SeilerA Billionaire Just Bet Big on This AI Stock.

Should Investors Follow Suit?Feb 21, 2026 •By Keithen DruryThe Cheapest "Magnificent Seven" Stock Is a Screaming Buy Right NowAbout the AuthorSean Williams is a data-driven Motley Fool contributing analyst who's been investing for 27 years and has penned north of 15,000 articles. You'll find him at the intersection of politics and investing tackling macroeconomic topics of interest (Social Security and Donald Trump's economic/tax policies), analyzing which stocks billionaire investors (e.g., Warren Buffett) are buying and selling, and digging into how the world's most-influential businesses and trends -- everything from the evolution of artificial intelligence (AI) to the next stock split -- are changing Wall Street. He holds a B.A. in Economics from the University of California, San Diego.TMFUltraLongX@AMCScamStocks MentionedMeta PlatformsNASDAQ: META$656.78 (+0.47%) $+3.09AlphabetNASDAQ: GOOGL$307.15 (1.84%) $5.75AmazonNASDAQ: AMZN$207.89 (1.31%) $2.75AlphabetNASDAQ: GOOG$307.15 (1.88%) $5.88*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.